baber/WOPTO huggingface dataset:
Patent GB-430874-A (GB)
Title: Radio-electric musical instrument
IPC: G10H5/02
Filed: 1934-11-02
Abstract: 430,874. Electrical musical instruments. MUSIQUE ELECTRO-SYNTHETIQUE, 100, Rue du Moulin-Fagot, COUPLEUX, E. E., 93, Rue Nationale, both in Tourcoing, Nord, and GIVELET, J. A., 24, Rue Bois-le-Vent, Paris, both in France. Nov. 2, 1934, No. 31522. [Class 88 (ii)] In an electrical musical instrument employing oscillating valves, means are provided for tuning the valves, for obtaining an attack similar to that of a pipe organ for producing a tremolo, and for obtaining different timbres. In Fig. 1, a self-induction coil 8, forming with a condenser 9 the oscillating circuit connected to the grid of a valve 1, constitutes a winding on a transformer 10, on which transformer is also arranged a low resistance winding 12 forming a closed circuit with a high resistance 13. The pitch is adjusted by varying the resistance 13. The filament - heating circuit includes a resistance 3, adjustable if desired, which is short-circuited at 4 on depression of the note-key 2. The heating voltage is thus increased when a note is sounded and the calorific inertia of the filament produces an attack similar to that of a pipe organ. In depressing the key 2 the grid contact 11 is closed to sound the note. In the grid circuit is included a variable condenser 6 shunted by a resistance 7 superposing highfrequency oscillations on the oscillating circuit to vary the timbre. The electric oscillations may be collected from the transformer 10 and led to a loud-speaker 15 ; a second loudspeaker 21 with short-circuiting switch 23, shunted also by condenser 22, may be included in the anode circuit, yielding a different timbre by reason of the presence of the constant anode current. In the anode circuit is also included the tremolo device comprising a resistance 19 periodically short-circuited by a trembler 20. In Fig. 2, a note is sounded on depression of a key 2<1> by de-short-circuiting the grid coil 24<1> at 25<1>. Coil 24<1> acts on coil 27<1> which is similar to coil 8, Fig. 1, but is connected to the anode instead of to the grid. Outputs from the valves are taken to a common transformer 29, the combined output being divided into portions having different timbres by transformers 31<1> ... and filters 32<1>, 34<1> ... connected to loud-speakers 35<1> ... Another group of loud-speakers 36<1> ... each with filters 39<1>, 37<1> ... are fed from transformers 401 ... connected in series to the anodes of the valves through condensers 41<1> ... Currents of different timbre in separate circuits may be combined in a transformer with a single secondary, Fig. 3, (not shown). Specification 393,822 is referred to.
Patent GB-245751-A (GB)
Title: Improvements in optical systems suitable for use in the projection of moving pictures
IPC: G03B41/04
Filed: 1925-12-14
Abstract: 245,751. Stern, M., and Ruhnau, R.. Jan. 12, 1925; [Convention date]. Kinematograph apparatus.-In continuous-feed apparatus having no shutter the projection lens is divided into segments to effect compensation for film movement. Fig. 8 shows two segments 4, 5 mounted on a rotatable member 8, the distance between the centres 8<a>, 8<b> of the segments being equal to the height of the film image. The member 8 is so shaped that, when it is driven by a spiral wheel 9, the segments rotate through 180‹ about the centre 8<a>, and the centre 8<a> simultaneously moves downwards at the same speed as the film image, the positions of the centres sa, 8b being then interchanged. During this movement the segment 4 projects the image, and continuation of the rotation causes the segments alternatively to project successive images. Guide wheels 11 similar to the wheel 9 are provided. In the construction shown in Fig. 9 the lens segments 14a, 14<b> are carried by a bar 12a having rollers 14 travelling on the circumference of a disc 13<a>, the bar being rotated by the pull of arms carrying rollers 16 and secured to a toothed ring 18 driven by a pinion 19. The lens segments may be coloured or coated near their straight sides so as to produce a progressive diminution of their transparency and prevent the simultaneous projection of two images.
Patent GB-974614-A (GB)
Title: Improved scarificator for use in vaccination and skin tests
IPC: A61B17/20
Filed: 1963-08-09
Abstract: 974,614. Scarificator. C. F. P. MERIEUX, and P. L. R. BURELLE. Aug. 9, 1963 [Aug. 10, 1962], No. 31626/63. Heading A5R. A scarificator comprises a base 2, a group of scarifying points 1, a groove 4 in said base encircling said points and a capillary tube 5 having an end which fits into said groove so as to be releasably retained in said groove after insertion therein. The base may be mounted on a ring 3 or thimble. The tube 5 is dipped in an active substance 6 and then pressed into groove 4 after which the device may be placed in a sealed container.
Patent GB-1022778-A (GB)
Title: Apparatus for widening the abrasive blast stream of abrasive blasting wheels
IPC: B24C5/06
Filed: 1964-08-04
Abstract: 1,022,778. Blasting. PANGBORN CORPORATION. Aug. 4, 1964 [Aug. 5, 1963], No. 31711/64. Heading B3D. Vanes are held within channels 3 in a wheel 1 by a locking pin 9 engaging a cut-out 11 in the base 13 of the vane. A recess 14 in the base 13 houses a spring urging the vane upwardly to give a tight fit of the walls of the base against the walls of the channel. A strengthening rib 17 is provided at the outer end of the face 15 of the vane. Vanes 5 are tilted toward the direction of rotation of the wheel, the intervening vanes 7 being tilted away from the direction of rotation of the wheel, whereby the abrasive stream is wider than if the vanes were perpendicular to the face of the wheel.
Patent GB-520861-A (GB)
Title: Improvements in the manufacture of thermionic cathodes for thermionic valves
IPC: H01J9/04
Filed: 1938-11-02
Abstract: 520,861. Thermionic cathodes. M-O VALVE CO., Ltd., and BENJAMIN, M. Nov. 2, 1938, No. 31729. [Class 39 (i)] In the preparation of thermionic cathodes by the application of a coating of thermionically active material as described, for example, in Specifications 514,849 and 515,371, [both in Group XXXVI], the parts of the cathode that are to be left uncoated are protected by a layer of wax, and the removal of the wax layer is facilitated by wetting the cathode prior to applying the wax layer. The wetting liquid may be methyl alcohol, ethyl alcohol or acetone which are suitable for paraffin wax melting at 65‹C.
Patent GB-1318639-A (GB)
Title: Production of highly disperse silicon dioxide
IPC: C01B33/18
Filed: 1970-07-01
Abstract: 1318639 Producing SiO 2  by the SiO process DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 1 July 1970 [1 July 1969] 31843/70 Heading C1A SiO 2  is produced by reacting a silica containing material with a reducing agent to form a gas stream containing SiO, introducing water vapour into the gas stream to form an intermediate containing Si-H and Si-OH groups, separating this intermediate, and heating it at 100- 1000 C. The starting materials may be quartz or a natural or synthetic silicate, and coke, Si, Mg, Al, or SiC, and may be heated in an electric arc furnace. A diluent gas, e.g. Ar, N 2 , H 2 , or recycle gas, may be introduced through the electrodes or separate pipes. The water vapour may be introduced through one or two nozzle rings in the outlet pipe, in a radial or inclined direction. The gas stream may then be cooled in a heat exchanger, separated in a cyclone, and the solids heated in a fluidized bed or rotary kiln in a stream of air or water vapour. Part of the gas from the cyclone and fluidized bed may be recycled into the gas stream before cooling and the rest fed through a compressor to a heatexchanger to condense H 2 O before recycling to the furnace. Water vapour for the process may be preheated sequentially in both the above mentioned heat exchangers. The product has a particle size of 5-150 mÁ, a surface area of 50-300 m.<SP>2</SP>/g., an apparent density of 15-30 g./l., and a viscosity in dispersions of up to 1700 cl.
Patent GB-206028-A (GB)
Title: Improvements in thermometers
IPC: G01K5/26
Filed: 1922-11-22
Abstract: 206,028. Sugden, T. Nov. 22, 1922. Thermometers.-In a thermometer secured to a sheet metal frame A on which the graduations are marked, the bulb being accommodated in an aperture D, the bulb is protected by a shield C comprising a band of German silver &c., the ends of which are sprung through the aperture D. To hold the shield in position it is formed with notches c which engage the sides of the aperture. To protect the back of the bulb a recess is formed in the back of the frame by bending back the sides.
Patent GB-1463172-A (GB)
Title: Handle for a container
IPC: B65D25/32
Filed: 1974-07-18
Abstract: 1463172 Attaching handles R D BOWLER 9 May 1975 [18 July 1974] 31918/74 Heading B3A [Also in Division B8] The ends of a metal or plastics bail handle, having circular rivet-receiving apertures 13, are secured to rivets 20 on a can by defining half of each aperture in a first handle part 16 and half in a second handle part 14, which is initially bent to an inclined position relative to the first part to permit entry of the rivet head through the aperture and which is subsequently bent back into the plane of the first part to prevent release of the rivet head.
Patent GB-319218-A (GB)
IPC: C09F9/00
Abstract: 319,218. British Thomson-Houston Co., Ltd., (Assignees of Scheiber, W. J.). Sept. 17, 1928, [Convention date]. Adhesives.-Drying oils are heated to form " boiled," " gelled," or "degelled" oils in presence of an amine. About 1 per cent of benzidine, diphenylamine, m- or p-phenylene diamine, or diisopropyl amine is suitable. Oils specified are linseed, china-wood, perilla, soya bean, and cotton-seed oils The degelled oil is useful as a cement or adhesive. Specification 239,414, [Class 91, Oils &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes the application of the process to any glyceride of an unsaturated fatty acid, and states that the condensation of resinous materials containing an unsaturated acid, for example, to a glyceride containing both a polybasic acid radical, e.g. phthalic acid, and an acid derived from a drying oil, is similarly accelerated. This subject-matter does not appear in the Specification as accepted.
Patent GB-1001537-A (GB)
Title: Improvements in or relating to colour television cameras
Inventor: PARKER-SMITH NEVILLE NORMAN
IPC: H04N5/225
Filed: 1963-08-13
Abstract: 1,001,537. Colour television. MARCONI Ltd. April 3, 1964 [Aug. 13, 1963], No. 31929/63. Heading H4A. [Also in Division G2] In a colour television camera light stop means is arranged to provide a larger aperture for light of the component colour of least effective luminance value than for light of the other component colours. Where the component colours are red, green and blue, blue is the component selected. In a simultaneous system a common light stop may be arranged as illustrated with a central clear aperture 1 and an annular surround of blue transmitting medium 2. The aperture 1 may be of a size to provide an aperture of f/30 for the red and green light and the annulus 2 may be dimensioned so as to provide an aperture of f/11 for the blue light. In a simultaneous system where the component images are formed over separate light paths a light stop of different aperture may be provided in each path. In a sequential system utilizing a rotating colour filter, the filter sections are arranged to constitute light stops of different size. Reference is made to the use of adjustable apertures, and neutral density wedges to control the general level of illumination. The invention is stated to be of particular use in television apparatus which is employed in aircraft visual flight simulators.
Patent GB-160535-A (GB)
Title: Improvements in or relating to ignition devices for internal-combustion engines
IPC: F02B19/10
Filed: 1919-12-19
Abstract: 160,535. Smith, F. A. Dec. 19, 1919. Addition to 142,197. Regulating.-The invention relates to devices of the kind described in the parent Specification wherein a charge is accumulated in a box separated from the engine cylinder by a suction-actuated valve, and consists mainly in arranging the valve so that, apart from its weight, it is operated solely by the fluid-pressure differences on its two sides. The construction shown in Fig. 1 corresponds with that of Fig. 1 of the parent Specification. The delivery valve DV, shown enlarged in Fig. 2, is merely a thin metal plate which, under pressure from below, closes the lower end of the passage J<1>. The construction shown in Fig. 5 resembles that shown in Fig. 4 of the parent Specification, wherein a piston valve FSP, operated by a suction-actuated piston P connected to the induction pipe of the engine, controls the distribution of the mixture in a multicylinder engine; but in this case a single chargeaccumulating box B encloses the regulating- means B, FSP, and supplies more than one cylinder. The delivery valve DV is a ball valve
Patent GB-1003243-A (GB)
Title: Improvements in or relating to films
IPC: B29C48/10
Filed: 1963-08-13
Abstract: 1,003,243. Tubular polypropylene films. E. I. DU PONT DE NEMOURS & CO. Aug. 13, 1963 [Aug. 17, 1962], No. 31974/63. Heading B5B. A biaxially oriented polypropylene film is made by extruding a polypropylene resin in the form of a molten tubular film at 200-275 C., advancing the extruded tubular film, at an ultimate rate of at least 10 times the rate of extrusion, over, but out of actual contact with, a cooling surface, the cooling surface consisting of at least two sections, the first being frustoconical with its narrow end facing the point of extrusion, and serving to cool the film to a temperature within its orientation temperature range, and a second section, continuous with the first, and 0À5 to 2 times the length of the first, being cylindrical and serving to cool the film to a setting temperature, the annular surface of the first section making an angle of 22-35 degrees with the annular surface of the second section; and expanding the tubular film to a diameter of at least 1À5 times its diameter as extruded while it is advanced over the cooling surface. The surface roughness of the cooling surface at the juncture between frustoconical and cylindrical sections is preferably 50-500 micro-inches. The ultimate advance rate of the film, and the amount its diameter is increased, are preferably correlated so that the properties of the film are the same in longitudinal and transverse directions. The polypropylene may be a polypropylene homopolymer, a copolymer in which polypropylene is a major component, or a mixture of such a propylene polymer with other polymers, e.g. polyethylene, wherein polypropylene is the major component. The polymer may contain dyes, pigments, fillers, plasticizers or slip agents. In one embodiment (Fig. 1) molten polypropylene is extruded from die 10 as a film 11 and advanced over a cooling mandrel 12 by pull roll set 13. The film is cooled by water circulated in sets of tubes 14A and 14B to 17A and 17B, located in the surface of the mandrel, and expanded by passing a gas via 19A into the mandrel, which is air-permeable, the amount of gas leaving at 19B controlling the inflation of the film. The expanded film is slit by blades 21. In Fig. 2, the tubular film is expanded by air admitted at 20A, forming a bubble between the face of the die and the pull rolls. Excess air is bled off at 20B. Both parts 12A and 12B of the mandrel are cooled by water circulated in pipes 18A and 18B. The film made according to the process is substantially of delta crystalline form, has an orientation ratio greater than 2, an orientation angle of 25-125 degrees and is heatsealable. Specifications 858,616, 882,155 are referred to. Reference has been directed by the Comptroller to Specification 868,388.
Patent GB-258138-A (GB)
Title: Decoration of or printing upon celluloid
IPC: B44C1/16
Filed: 1925-12-22
Abstract: 258,138. M³ller, F. H., and Greiner, E. E., (trading as Greiner & Co., Gr.), (Bayerische Celluloid Warenfabrik vorm. A. Wacker Akt.-Ges.). Dec. 22, 1925. Ornamenting. - Sheet celluloid is printed, decorated, or coloured before pressing or other treatment for producing the finished article, and a coating of transparent varnish, preferably celluloid varnish, capable of receiving a high polish by buffing or otherwise treating the finished article, is applied.
Patent GB-1036280-A (GB)
Title: Imidazolidine derivatives and a process for the manufacture thereof
IPC: C07D233/32
Filed: 1964-08-10
Abstract: Novel compounds of Formula I <FORM:1036280/C2/1> where R1 is an alkyl, alkenyl, aryl, substituted aryl, aralkyl, substituted aralkyl, aminocarbonylalkyl, or N-alkyl-substituted amino-carbonyl-alkyl group, R2 is an alkyl, alkenyl, acyl, aryl, substituted aryl, aralkyl, substituted aralkyl, aryloxyalkyl, substituted aryloxyalkyl or alkyl-substituted aminoalkyl group, and R3 is an alkyl, aralkyl or substituted aralkyl group, and the broken line denotes that the substituent attached thereby is optional, and acid addition and quaternary salts thereof are prepared by reacting a compound of Formula II <FORM:1036280/C2/2> with formaldehyde in the presence of an acid agent, if desired introducing the group R2 into the product if absent, or removing said group if present, and/or, also if desired, reducing any nitro substituent in the R1 group, and, where required, transforming the compound obtained into an acid addition or quaternary salt.  The process may also be performed by treating the starting material with the acid agent after reaction of the starting material with formaldehyde. R1 or R2 or both may be transformed from one of their given values to another where this is feasible.  A methylene - N,N1 - bis - (imidazolidone) compound of Formula IV <FORM:1036280/C2/3> may be obtained as by-product when a compound of Formula II is reacted with formaldehyde in the absence of an acid agent.  The starting materials of Formula II may be prepared by reacting a compound of formula <FORM:1036280/C2/4> with ammonia or an amine R1NH2 in the presence of N,N1-dicyclohexyl - carbodiimide. The amino group in the formula above may be protected, e.g. by a benzyloxy - carbonyl, during this reaction, and is then removed. N-(N1 - benzylglycyl) - 3,4 - di - methoxyaniline is prepared by reducing N-(N1-benzylideneglycyl) - 3,4 - dimethoxyaniline which is prepared by reacting N-glycyl-3,4-dimethoxyaniline with benzaldehyde. N-(N1-isopropylglycyl) - 3,4 - dimethoxyaniline is prepared by reacting N - glycyl - 3,4 - dimethoxyaniline with acetone, and reducing the product. Similarly, N - (N1 - secbutylglycyl) - 3,4 - dimethoxyaniline is prepared by reacting N-glycyl-3,4-dimethoxyaniline with methyl ethyl ketone and reducing the Schiff's base formed.  Pharmaceutical compositions, which are useful as muscle relaxants, diuretics, analgesics, sedatives, antirheumatics, blood pressure and blood sugar lowering agents and which can be administered internally, contain as active ingredient compounds of Formula I above.
Patent GB-356988-A (GB)
IPC: H03B5/10
Filed: 1930-10-29
Abstract: 356,988. Valve generating circuits. LORENZ AKT.-GES., C., 1. Lorenzweg. Tempelhof, Berlin. Oct. 29, 1930, No. 32533. Convention date, Nov. 9, 1929. [Class 40 (v).] Relates to frequency - multiplying valve circuits of the kind in which the grid is biased so that only the peaks of the fundamental input wave cause anode current to flow; and consists in supplying the negative bias partly by a constant voltage source and partly by an impedance such as a resistance W1 which supplies additional bias to an extent dependent on the grid current flowing therein. With this automatic adjustment of bias, the multiplier is not rendered inoperative by variations in amplitude of the input wave, such as are liable to occur when a fundamental wave is distributed to a number of equalwave broadcasting stations. The input transformer L1, L2 may itself furnish the automatic grid bias, if it is constructed to have a large stray field. The plate circuit which includes a circuit C2, L3 tuned to the desired harmonic, may also include a resistance W2.
Patent GB-726826-A (GB)
Title: Improvements in and relating to the manufacture of galvanic batteries
Inventor: STONE HENRY DERMOTT
IPC: H01M4/08
Filed: 1952-12-23
Abstract: 726,826. Batteries. McMURDO INSTRUMENT CO., Ltd. Jan. 21, 1954 [Dec. 23, 1952], No. 32609/52. Class 53. A positive electrode is made by fusing a mixture of cuprous chloride and powdered copper and casting the molten mixture in a mould. The mixture may also include a small amount of cuprous sulphide. In one method cuprous chloride powdered copper and cuprous sulphide are fused together in an atmosphere of sulphur dioxide and the molten mixture run into a mould which has a strip of copper gauze stretched across its centre so that after cooling the gauze is embedded in the solid material. The mould may be made of graphite, metal, ceramic or other material and it may be lined with copper foil which remains adherent to the solid plate after it has been removed from the mould. Before the plate is assembled in a battery the foil is stripped from its surface. The plate is used with a zinc or magnesium electrode which may comprise two plates 3, 4 which are separated from the cuprous chloride plate 1 by a polythene thread 2 wound round the plate 1. Removable plugs 5a are provided in the container for the introduction of electrolyte which may be plain water or sea water.
Patent GB-446331-A (GB)
Title: Improvements in and relating to luggage-receptacles for motor cycles
IPC: B62J9/00
Filed: 1935-11-25
Abstract: 446,331. Luggage-carriers. KYBURZ, M., Dintikon, Aargau, Switzerland. Nov. 25, 1935, No. 32630. [Class 136 (i)] [See also Group XVII] A luggage-receptacle for attachment to a motor-cycle is of streamline shape ; it is provided with a handle for carrying it when detached, the handle being slidably mounted under spring control so that hooks on its lower ends can engage an attachment bar secured to the stays of the mudguard or usual luggagecarrier, means being also provided for locking the parts to prevent unauthorized removal. As shown, a receptacle formed of sheet metal is mounted on each side of the cycle, and comprises a front wall 2, top 3, and rear wall 4 merging into one another in streamline form. The outer wall forms a cover 5, which is hinged at 6 to the bottom 1, so that it can be opened out into the horizontal position and supported by folding stays 7 to form a tray for use during repairs &c. The bottom 1 of each receptacle is provided with studs 13 adapted to engage holes in an angle-section bar 15 secured to the carrier &c. stays. The vertical arms of a handle 10 slide in guides 9, Figs. 2 and 3, on the back of the receptacle under the control of springs 12, which are adapted to cause hooks 11 to engage the lower edge of a bar 14 also secured to the stays. To detach the receptacle, the handle 10 is depressed to disengage the hooks 11, and the receptacle is then turned forwards and lifted away. The parts are locked in the attached position by a pivoted loop 19 located inside the receptacle (the cover of which may be locked) and adapted to be passed through a hole in the back wall into engagement with a recess 20 in the arm of the handle 10. In the interior of the receptacle is a leather or canvas tool &c. case 22 fitted with a key holder, inner pocket, &c. A sheet-metal strip 21 fixed to the bottom 1 prevents articles from falling out.